JPH0935943A - Oil level indicator for transformer - Google Patents
Oil level indicator for transformerInfo
- Publication number
- JPH0935943A JPH0935943A JP7207666A JP20766695A JPH0935943A JP H0935943 A JPH0935943 A JP H0935943A JP 7207666 A JP7207666 A JP 7207666A JP 20766695 A JP20766695 A JP 20766695A JP H0935943 A JPH0935943 A JP H0935943A
- Authority
- JP
- Japan
- Prior art keywords
- connecting rod
- oil level
- oil
- external force
- conservator
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/08—Cooling; Ventilating
- H01F27/10—Liquid cooling
- H01F27/12—Oil cooling
- H01F27/14—Expansion chambers; Oil conservators; Gas cushions; Arrangements for purifying, drying, or filling
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Housings And Mounting Of Transformers (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、油入変圧器において油
量の増，減を検知するための油面表示装置の改良に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to improvement of an oil level display device for detecting an increase or decrease in the amount of oil in an oil-filled transformer.
【０００２】[0002]
【従来の技術】従来の油面表示装置は、例えば、図４に
示すように、コンサベータ２の側壁に取付けられて、コ
ンサベータ２内の隔膜４上を転動するローラ８を備えた
連接棒７に結合部１７を介して共動回転する平歯車１０
と、この平歯車１０と噛み合う平歯車１１と、前記平歯
車１１と一体に形成した扇形のかさ歯車１２と、該かさ
歯車１２と連動されて回動するローラ側の可動マグネッ
ト１３と、ローラ側の可動マグネット１３と磁気的に結
合されて駆動する指針側の可動マグネット１４と、この
指針側の可動マグネット１４に共動可能に取付けた指針
１５と、更に、前記指針１５側とコンサベータ２内とを
気密に遮蔽するための隔壁１６とによって概略構成され
ている。2. Description of the Related Art A conventional oil level display device is, for example, as shown in FIG. 4, connected to a side wall of a conservator 2 and provided with a roller 8 which rolls on a diaphragm 4 in the conservator 2. Spur gear 10 that rotates together with the rod 7 via the connecting portion 17.
A spur gear 11 that meshes with the spur gear 10, a fan-shaped bevel gear 12 formed integrally with the spur gear 11, a movable magnet 13 on the roller side that rotates in conjunction with the bevel gear 12, and a roller side. The movable magnet 14 on the pointer side that is magnetically coupled to and driven by the movable magnet 13, the pointer 15 movably attached to the movable magnet 14 on the pointer side, and further, the pointer 15 side and the inside of the conservator 2. And a partition wall 16 for airtightly shielding and.
【０００３】そして、変圧器の負荷変動や周囲の温度変
化などによる絶縁油の膨張・収縮に伴い、コンサベータ
２内の油面１９が変化するのに追随して揺動する隔膜４
の上下動を、連接棒７及び前記連接棒７の上下動を回転
運動に変換する平歯車１０、かさ歯車１２等からなる歯
車機構ｇを介して指針１５に伝達し、これを油面計３に
より油量の増，減（変位）として指針表示していた。The diaphragm 4 swings following the change of the oil level 19 in the conservator 2 as the insulating oil expands and contracts due to the load fluctuation of the transformer and the ambient temperature change.
Vertical movement of the connecting rod 7 and a spur gear 10 for converting the vertical movement of the connecting rod 7 into a rotary motion, a bevel gear 12 and the like are transmitted to a pointer 15 through a gear mechanism g, which is transmitted to an oil level gauge 3 As a result, the pointer was displayed as an increase or decrease (displacement) in the oil amount.
【０００４】前記のように構成された油面表示装置Ａ
は、変圧器の据付後、例えば、地震等の発生により予期
しえない強大な外力が前記連接棒７に強制的に作用する
と、前記連接棒７は歯車機構ｇとの結合部１７を支点と
して上下方向はもとより、左右方向にも激しく振動する
ことになる。しかしながら、前記連接棒７はその機能
上、平歯車１０の回転中心を中心として上下方向（垂直
方向）のみしか揺動しない構造となっているため、前記
左右方向（横方向）の振動に対しては何等の対策も施さ
れていないので、連接棒７と平歯車１０との結合部１７
に繰り返し曲げ応力が作用し、これが結合部１７を形成
する材料の破壊値をこえると、連接棒７の結合部１７の
断面係数の小さい図示しないスタッド部分が切損する場
合があった。前記結合部１７が切損すれば油面計３は全
く機能しないため、交換するしか方法がないので非常に
不経済であった。Oil level display device A constructed as described above
After installation of the transformer, when an unexpectedly large external force is forcibly applied to the connecting rod 7 due to occurrence of an earthquake or the like, the connecting rod 7 uses the connecting portion 17 with the gear mechanism g as a fulcrum. It vibrates not only vertically but also horizontally. However, since the connecting rod 7 has a structure which swings only in the up-down direction (vertical direction) about the rotation center of the spur gear 10 in terms of its function, the connecting rod 7 is resistant to vibration in the left-right direction (lateral direction). Since no measures have been taken against this, the connecting portion 17 between the connecting rod 7 and the spur gear 10 is
When a bending stress is repeatedly applied to the stud, and this exceeds the fracture value of the material forming the joint 17, the stud portion (not shown) of the joint 17 having a small section modulus of the connecting rod 7 may be cut off. If the joint portion 17 is broken, the oil level gauge 3 will not function at all, and there is no alternative but to replace it, which is very uneconomical.
【０００５】[0005]
【発明が解決しようとする課題】本発明は、前記の問題
点を解決するために、油量の増，減による油面の上下動
を検知する油面表示装置の連接棒を、その一部に可撓性
部材を介在させて形成することにより、連接棒の切損を
未然に回避し、信頼性の優れた油面表示装置を提供する
ことにある。SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a connecting rod of an oil level display device for detecting a vertical movement of the oil level due to an increase or decrease in the amount of oil. Another object of the present invention is to provide a highly reliable oil level display device by avoiding breakage of the connecting rod in advance by forming a flexible member therebetween.
【０００６】[0006]
【作用】本発明によれば、地震等の発生により過大な外
力が連接棒に強制的に作用し、この連接棒を水平方向に
激しく振動させても、連接棒の一部に設けた可撓性部材
によって前記振動を瞬時に吸収緩和することができるの
で、連接棒に繰り返し曲げ応力が仮に作用しても、油面
表示装置は前記の曲げ応力によって損傷するということ
は全くなく、長期間にわたり安定した状態で使用するこ
とができる。According to the present invention, an excessive external force is forcibly applied to the connecting rod due to the occurrence of an earthquake or the like, and even if the connecting rod is violently vibrated in the horizontal direction, the flexibility provided in a part of the connecting rod. Since the vibration can be instantly absorbed and relaxed by the elastic member, even if a bending stress is repeatedly applied to the connecting rod, the oil level display device is not damaged by the bending stress at all, and the oil is not damaged for a long time. It can be used in a stable state.
【０００７】[0007]
【実施例】以下、本発明の実施例を図１ないし図３によ
り説明する。図１において、１は変圧器本体で、２は変
圧器本体１の上部に設けられたコンサベータである。３
はコンサベータ２の側壁に取り付けられた油面計、４は
コンサベータ２内の絶縁油５を空気層６と遮蔽して絶縁
油５の劣化を防止する耐油性のゴム部材等よりなる隔
膜、７は隔膜４に接しながら図１において、上下方向は
もとより左右方向（横方向）にも移動可能な連接棒を示
し、この連接棒７にはコンサベータ２内に位置する一方
端に隔膜４と常時摺接するローラ８が取り付けられてお
り、又、コンサベータ２外に位置する他方端は油面計３
の歯車機構ｇに駆動可能に連接されている。なお、本発
明の実施例においては、油面計３は従来と同一構造のも
のを使用しているので、その構成の説明は省略する。Embodiments of the present invention will be described below with reference to FIGS. In FIG. 1, reference numeral 1 is a transformer body, and 2 is a conservator provided above the transformer body 1. 3
Is an oil level gauge attached to the side wall of the conservator 2, and 4 is a diaphragm made of an oil-resistant rubber member or the like that shields the insulating oil 5 in the conservator 2 from the air layer 6 to prevent deterioration of the insulating oil 5, In FIG. 1, reference numeral 7 denotes a connecting rod which can move not only in the vertical direction but also in the horizontal direction (horizontal direction) while being in contact with the diaphragm 4. The connecting rod 7 has a diaphragm 4 at one end located in the conservator 2. A roller 8 that is always in sliding contact is attached, and the other end located outside the conservator 2 has an oil level gauge 3
Is connected to the gear mechanism g so as to be drivable. In the embodiment of the present invention, since the oil level gauge 3 has the same structure as the conventional one, the description of the structure is omitted.
【０００８】そして、前記連接棒７は図２で示すよう
に、油面計３内の歯車機構ｇと連接する結合部１７との
間で、バネ等の復元力のある可撓性部材９によって接合
されている。そして、可撓性部材９は、図３に示すよう
に、連接棒７と結合部１７の端部にそれぞれネジ切りさ
れたアダプター部１８（連接部）に可撓性部材９である
バネの両端を、例えば、ねじ込むようにして結合し、こ
の後、可撓性部材９とアダプター部１８とを溶接等によ
り固着して連接棒７を弾性力を備えた状態で結合部１７
と連接するものである。As shown in FIG. 2, the connecting rod 7 is provided with a flexible member 9 having a restoring force such as a spring between the connecting portion 17 connected to the gear mechanism g in the oil level gauge 3 and the connecting portion 17. It is joined. Then, as shown in FIG. 3, the flexible member 9 has both ends of the spring which is the flexible member 9 in the adapter portion 18 (connecting portion) which is threaded at the end portions of the connecting rod 7 and the connecting portion 17, respectively. Are joined together by, for example, screwing in, and then the flexible member 9 and the adapter portion 18 are fixed by welding or the like so that the connecting rod 7 is provided with an elastic force.
Is connected to.
【０００９】次に動作について説明する。絶縁油５が変
圧器の負荷変動や周囲の温度変化によって膨張・収縮
し、コンサベータ２内の油面が上下に変動すると、絶縁
油５と空気層６とを隔絶している隔膜４に摺接するロー
ラ８は、前記隔膜４の揺動変化に追随して連接棒７を上
下動させる。この連接棒７の上下方向の揺動変化は、可
撓性部材９を介して図４に示す油面計３内の従来より知
られている歯車機構ｇに伝達され、この歯車機構ｇを駆
動してコンサベータ２内の油量の増，減を指針１５によ
り表示する。Next, the operation will be described. When the insulating oil 5 expands and contracts due to the load fluctuation of the transformer and the ambient temperature change and the oil level in the conservator 2 fluctuates up and down, the insulating oil 5 and the air layer 6 are slid on the diaphragm 4. The contacting roller 8 moves the connecting rod 7 up and down following the swinging change of the diaphragm 4. The vertical swing change of the connecting rod 7 is transmitted to the conventionally known gear mechanism g in the oil level gauge 3 shown in FIG. 4 via the flexible member 9 to drive the gear mechanism g. Then, the increase / decrease in the amount of oil in the conservator 2 is indicated by the pointer 15.
【００１０】以上説明したように、正常に動作している
前記油面表示装置Ａに、地震等の発生による過大な強制
外力が作用した場合について説明する。地震等が発生す
るとその過大な外力が連接棒７に強制的に加わり、この
連接棒７を放射方向に激しく振動させる。しかし、この
振動は連接棒７と結合部１７との間に介在する可撓性部
材９によって、瞬時に、かつ、良好に吸収緩和されるの
で、前記振動によって生じる繰り返し曲げ応力が連接棒
７に作用しても、前記可撓性部材９により吸収すること
ができるので、前記繰り返し曲げ応力によって油面表示
装置Ａが破損するといった事故を確実に回避することが
できる。なお、前記強制外力が収まれば油面表示装置Ａ
が元の平常動作に戻るということは言うまでもない。As described above, a case will be described in which an excessively large external force is applied to the oil level display device A which is operating normally due to the occurrence of an earthquake or the like. When an earthquake or the like occurs, the excessive external force is forcibly applied to the connecting rod 7 and vibrates the connecting rod 7 violently in the radial direction. However, this vibration is instantly and satisfactorily absorbed and relaxed by the flexible member 9 interposed between the connecting rod 7 and the connecting portion 17, so that the repetitive bending stress caused by the vibration is applied to the connecting rod 7. Even if it works, it can be absorbed by the flexible member 9, so that it is possible to surely avoid the accident that the oil level display device A is damaged by the repeated bending stress. If the above-mentioned forced external force is subsided, the oil level display device A
Needless to say, will return to normal operation.
【００１１】なお、本発明は、隔膜式コンサベータに備
えられた油面表示装置Ａにのみ適用されるものではな
く、浮き子を用いた隔膜を有しない油面表示装置にも適
用できることはいうまでもない。It should be noted that the present invention is not only applicable to the oil level display device A provided in the diaphragm type conservator, but is also applicable to the oil level display device having no diaphragm using the float. There is no end.
【００１２】[0012]
【発明の効果】以上説明したように、本発明の油面表示
装置においては、油面の上下変動を検知する油面計の連
接棒を、バネ等復元力のある可撓性部材を介在させて形
成することにより、地震等過大な外力による振動が強制
的に連接棒に直接作用しても、前記可撓性部材によって
前記振動を良好に吸収緩和することができるので、前記
振動による繰り返し曲げ応力によって、油面計が破損す
るといった問題を確実に解消することができる。As described above, in the oil level display device of the present invention, the connecting rod of the oil level gauge for detecting the vertical movement of the oil level is provided with a flexible member such as a spring having a restoring force. The flexible member can absorb and relax the vibration well even if the vibration due to an excessive external force such as an earthquake is forcibly directly applied to the connecting rod. The stress can surely solve the problem that the oil level gauge is damaged.
【図面の簡単な説明】[Brief description of drawings]
【図１】本発明の油面表示装置の取付位置を示す構成図
である。FIG. 1 is a configuration diagram showing a mounting position of an oil level display device of the present invention.
【図２】本発明の油面表示装置の側面図である。FIG. 2 is a side view of the oil level display device of the present invention.
【図３】本発明の油面表示装置に用いる連接棒の拡大図
である。FIG. 3 is an enlarged view of a connecting rod used in the oil level display device of the present invention.
【図４】従来の油面表示装置の要部を縦断して示す断面
図である。FIG. 4 is a vertical cross-sectional view showing a main part of a conventional oil level display device.
１ 変圧器本体 ２ コンサベータ ３ 油面計 ４ 隔膜 ５ 絶縁油 ６ 空気層 ７ 連接棒 ８ ローラー ９ 可撓性部材 １０，１１ 平歯車 １２ かさ歯車 １３ ローラー側の可動マグネット １４ 指針側の可動マグネット １５ 指針 １６ 隔壁 １７ 結合部 １８ アダプター部 １９ 油面 1 Transformer Main Body 2 Conservator 3 Oil Level Meter 4 Diaphragm 5 Insulating Oil 6 Air Layer 7 Connecting Rod 8 Roller 9 Flexible Member 10, 11 Spur Gear 12 Bevel Gear 13 Movable Magnet on Roller Side 14 Movable Magnet on Pointer Side 15 Pointer 16 Partition wall 17 Connecting part 18 Adapter part 19 Oil surface
Claims (1)
ート又はローラで検知し、これを連接棒を介して油面計
に表示するようにした油面表示装置において、前記連接
棒はその一部にバネ等復元力のある可撓性部材を介在さ
せて形成したことを特徴とする変圧器用油面表示装置。1. An oil level display device in which an up and down movement of an oil level due to an increase or decrease in the amount of oil is detected by a float or a roller and is displayed on an oil level gauge via a connecting rod. The oil level display device for a transformer, wherein the rod is formed by interposing a flexible member such as a spring having a restoring force in a part thereof.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7207666A JPH0935943A (en) | 1995-07-21 | 1995-07-21 | Oil level indicator for transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7207666A JPH0935943A (en) | 1995-07-21 | 1995-07-21 | Oil level indicator for transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0935943A true JPH0935943A (en) | 1997-02-07 |
Family
ID=16543552
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7207666A Pending JPH0935943A (en) | 1995-07-21 | 1995-07-21 | Oil level indicator for transformer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0935943A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5490969B1 (en) * | 2013-07-09 | 2014-05-14 | 三菱電機株式会社 | Conservator |
-
1995
- 1995-07-21 JP JP7207666A patent/JPH0935943A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5490969B1 (en) * | 2013-07-09 | 2014-05-14 | 三菱電機株式会社 | Conservator |
| WO2015004726A1 (en) * | 2013-07-09 | 2015-01-15 | 三菱電機株式会社 | Conservator |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4656383A (en) | Vibrating beam force transducer with single isolator spring | |
| CN209343990U (en) | A kind of high-precision gas density monitor | |
| CA1206170A (en) | Weighing scale transducer | |
| KR20000028718A (en) | Load measuring apparatus | |
| US4165651A (en) | Pressure measuring apparatus using vibratable wire | |
| CN109103050A (en) | A method of improving gas density relay precision | |
| CN110672067A (en) | Fiber grating tilt angle sensor | |
| EP3734632B1 (en) | Method for improving gas density relay precision and high-precision gas density relay | |
| WO2020063606A1 (en) | High-precision sf6 gas density relay and method for implementing same | |
| JPH0935943A (en) | Oil level indicator for transformer | |
| CN110243343A (en) | Sensor module, dipmeter and works monitoring arrangement | |
| US6450032B1 (en) | Vibrating beam force sensor having improved producibility | |
| WO1982003122A1 (en) | Improved vibration isolation apparatus | |
| US3506857A (en) | Compressive mode piezoelectric transducer with isolation of mounting base strains from the signal producing means thereof | |
| JP4837677B2 (en) | Self-supporting and self-aligning shaker | |
| JP2008170203A (en) | Acceleration detection unit and acceleration sensor | |
| KR101809604B1 (en) | Multi axis bridge displacement gauge | |
| JPS58108416A (en) | Electronic balance | |
| JP3234417B2 (en) | Load sensor | |
| JPS601397Y2 (en) | Pressure gauge that prevents minute vibrations in the pointer | |
| JP2019158863A (en) | Sensor module, inclinometer, and structure monitoring device | |
| JPH0750686Y2 (en) | Closed load cell | |
| US3326038A (en) | Testing apparatus | |
| US20090071250A1 (en) | Beam accelerometer with limiting apparatus | |
| JPH0526504Y2 (en) |